Clean up, more docs

...ava/org/caosdb/server/jobs/core/CheckStateTransition.java

...main/java/org/caosdb/server/jobs/core/EntityStateJob.java

...in/java/org/caosdb/server/jobs/core/MakeStateMessage.java

...rg/caosdb/server/utils/fsm/ActionNotAllowedException.java

.../java/org/caosdb/server/utils/fsm/FiniteStateMachine.java

...osdb/server/utils/fsm/MissingImplementationException.java

src/main/java/org/caosdb/server/utils/fsm/State.java

...g/caosdb/server/utils/fsm/StateNotReachableException.java

...g/caosdb/server/utils/fsm/StrategyFiniteStateMachine.java

src/main/java/org/caosdb/server/utils/fsm/Transition.java

...aosdb/server/utils/fsm/TransitionNotAllowedException.java

...a/org/caosdb/server/utils/fsm/TestFiniteStateMachine.java

...osdb/server/utils/fsm/TestStrategyFiniteStateMachine.java